C1111233131211111211113313331333133313331333133313331333133313113313233322331   >>    C111123313121111121111331333133313331333133313331333133313331311331323332233   <<    C1111233131211111211113313331333133313331333133313331333133313113313233322333   >>      C1111233131211111211113313331333133313331333133313331333133313113313233322332   >>